Why is kinetic friction less than static?

An object with a positive velocity and a negative acceleration will ...

Lake Baikal in Siberia has a maximum depth of 1642 m. What is the water pressure at this depth? (Ignore atmospheric pressure - looking for gauge pressure)

22. Kerry Klutz drops her physics book off her aunt's high rise balcony. It hits the ground below 1.5 s later. a. With what speed does it hit? b. How high is the balcony (ignore air drag).

Which of these features is NOT found on the ocean floor? A. mountain B. volcano C. river D. plain

Which of the following statements about two carts rolling on a track and experiencing a completely inelastic collision is TRUE? a. The kinetic energy of the system is conserved to good approximation. b.

Two copper wires with different diameters are joined end to end. If a current flows in the wire combination, what happens to electrons when they move from the larger-diameter wire into the smaller-diameter wire?

A baseball player is warming up and tosses a ball straight up into the air. The ball travels up until it reaches some maximum height, and then falls back down to the player/'s hand.

Volume can be measured in liters or cubic meters. a. T b. F

A spring with a spring constant of 1200 N/m has a 55-g ball at its end. The energy of the system is 5.5J. What is the amplitude of vibration?

Force F1 acts on a particle and does work W1. Force F2 acts simultaneously on the particle and does work W2. The speed of the particle does not change. Which one of the following must be true? a. W1 is zero, and W2 is positiveb. W1 = - W2c.